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Questions tagged [food]

substance consumed to provide nutritional support for humans and animals. Use this tag for questions on the sustainability aspects of food in general. See also [meat],[fish],[cooking]

4
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2answers
117 views

Carbon footprint of soy milk versus cow's milk

I am wondering about a specific carbon footprint comparison (i.e. total global warming potential per litre) between soy milk and cow's milk. This would of course depend on where and how they are ...
6
votes
0answers
32 views

Freezing Ice Pops Sustainably

When storing ice pops for retail customers, I need to package them in a freezer-safe ,clear wrapping. I would like for it to be compostable, but apparently the compostable cellophane options are not ...
3
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2answers
49 views

Re-usable packaging options for cheese?

I have a vision for a model of grocery store that would buy food in bulk and package on-site into packaging which is 100% reusable or truly compostable (unlike many types of so-called "compostable ...
6
votes
2answers
143 views

What is an environmentally-conscious replacement for white yogurt?

I am looking for an environmentally conscious replacement for white yogurt. I do have a couple of ideas for foods that could work well, but I have very little clue if they are a better choice from the ...
6
votes
2answers
274 views

Can Earth sustain 100% vegetarian population

I'm not asking what will happen if everyone in the world suddenly turned to vegetarian. In an ideal world with current population, can everyone follow a vegetarian diet (except for people who may need ...
1
vote
1answer
44 views

How to source sustainable/ethical meat?

There seem to be a lot of resources out there for sourcing sustainably/ethically grown vegetables, but many of the ones I can find seem to be aimed primarily at vegetarians/vegans, and so don't have ...
5
votes
1answer
115 views

What is the environmental impact of meal kit subscriptions (Blue Apron, etc)?

According to Wikipedia, a meal-kit is... ...a subscription service that sends customers pre-portioned food ingredients and recipes for them to prepare homecooked meals. Well-known examples include ...
5
votes
2answers
77 views

Is “buying local” sustainable, with reference to food made from animals?

No doubt vegetables, fruits and salads produced locally in most cases provide local jobs and usually best fresh quality. On the other hand a lot of animal food (soy, corn, and others) are shipped ...
4
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2answers
116 views

What feed is typically used in cricket farming?

Insect farming has been hailed by some as a sustainable alternative to animal agriculture because the requirements for land and water are much lower. But just as livestock depend on plant food that ...
5
votes
1answer
57 views

How much soya is needed to produce a glass of cow's milk?

Producing soya beans is responsible for some significant amounts of deforestation in tropical areas and relying on soya introduces a demand for transportation in countries where soya is not grown. I ...
3
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1answer
234 views

Which has a smaller footprint — canned or frozen vegetables?

When fresh vegetables aren't an option, many sources indicate that frozen vegetables are generally better than canned (see here, here, and here, for example). However, how do the environmental ...
-1
votes
2answers
123 views

Will Koolatron cooler cool warm stuff?

We don't have any electricity, so we're thinking of purchasing this Koolatron cooler. Most of the drinks I put in it (refreshment cans, water bottles, etc) will be warm/room-temperature. Will it ...
7
votes
1answer
110 views

How does transportation cost depend on food?

Given that two foods requiring refrigeration have the same weight and volume and are being shipped from one location to another via the same method, how does the environmental impact of that ...
6
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3answers
486 views

What type of cheese has the lowest carbon footprint?

An answer to a question about the carbon footprint of cheese inspired this question. According to Wikipedia, cheese can be made from the milk of several animals: cows goats sheep buffalo reindeer ...
23
votes
3answers
2k views

Why does cheese have such a high carbon footprint?

(Source of information here) As you can see, cheese has the third highest carbon footprint. Only beef and lamb have a higher footprint. Several other sources (such as this) corroborate this. Why is ...
2
votes
0answers
69 views

What's required for hydroponic farming in a container?

I have a container of size L 1.8 m × W 1.86 × H 1.73. I am planning to turn this into a hydroponic container for growing cooking greens (salad etc.). The thing that concerns me is the stuff I probably ...
2
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0answers
120 views

Useful plants to grow in garden [closed]

I am a guy living in Kerala, India. I have a plot of 5 cents (about 200 square meter) in my backyard. I would like to know which plants would be helpful for planting in the plot (edible fruits or ...
7
votes
2answers
153 views

Most eco-friendly staple food

I was wondering what the most eco-friendly high-starch food is — not per kg but per calorie — I am looking for something to eat large amounts of when hungry after my main meals. Thanks. Grains and ...
2
votes
1answer
263 views

How different are small fruits and vegetables grocery stores from around the corner from big supermarkets?

When I buy fruits and vegetables in a small grocery store at the corner, I cannot help myself but think that—coming from the idea that "Small is Beautiful"—if I do my shoppings in these kinds of ...
7
votes
1answer
665 views

How do organic nuts differ from non-organic nuts?

Organic nuts are significantly more expensive than non-organic nuts. How do they difference with regards to the following exemplary aspects? difference in pesticide use? difference in large-scale vs....
6
votes
1answer
172 views

Do the veggies you eat today have the same amount of vitamins and minerals as they used to twenty years ago?

The RDA (Recommended Dietary Allowances) recommended to us by health experts are based on the amount of nutrition in fruits, vegetables, grains, etc. The RDA hasn't changed since decades. Are any ...
8
votes
2answers
184 views

Would a tax on non-organic meat have environmental benefits?

The production of livestock is responsible for a massive share of the methane that is released into the atmosphere, and is a major contributor to global warming. Sources: The Lancet: "Food, ...
6
votes
1answer
64 views

Reference request - Farm level, multi year comparison between organic and conventional agriculture

This meta study on the crop yield gap suggests that organic farming has about 80% the yield of conventional farming at the field level, yields may vary widely and organic yields can surpass ...
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2answers
150 views

What type of guinea pigs will keep a food forest well cleaned?

I'm building a food forest, and was wondering what type of guinea pigs would work best to keep a food forest floor clean while not harming my plants so I can have plenty of food as well as getting ...
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4answers
256 views

Using other peoples resources for basic living

For at least a few weeks, I've been living using others resources. I do not own a cellphone and have no expenses except my car insurance. I'm currently using my car for sleep and transportation. For ...
6
votes
1answer
75 views

Best vegetables for roof top garden?

I have a small garden on the roof of an appartment Building, and I have an area of 3 square meters to plant crops. Last year I planted carrots and got around 100 distributed over the year. This year ...
15
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4answers
520 views

What to do with expired food?

When I last visited my grandmother I found a couple of expired cans of peaches. Given that they should have been consumed three years ago I don't think it's safe to eat them. I was thinking about ...
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0answers
143 views

Model for sustainable, free food distribution [closed]

Background Consider the following model intended to sustainably eliminate human involvement in food production: Known Issues The following known problems exist: Friction. The amount of energy lost ...
7
votes
1answer
78 views

Rye cultivation and rye flour

In view of the possibility of cultivating rye to become self-sufficient in bread and flour, I am looking for a good estimate of the following quantities: the surface of area planted with rye ...
12
votes
1answer
173 views

Is plastic food packaging 100% reusable?

There is the prominent argument that we should buy food without plastic packaging because plastic is made of oil and thus bad. I'm wondering, however, what if the plastic packaging remains in the ...
13
votes
2answers
962 views

Which is more sustainable: Almond, Soy, Coconut, Cashew or Other Milk?

As my question indicates, what is the most viable dairy alternative from a sustainability perspective (ignoring the importance of nutritional value)? From a life-cycle analysis are some options more ...
4
votes
1answer
142 views

Energy requirements for sustainable food production system

Overview Consider the following system for sustainable food production: The purpose of this system is to provide an environmentally-friendly, semi- (or fully-) automated means to produce food for ...
5
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4answers
3k views

What's the best use for pig fat (lard)?

We have two Tamworth pigs coming back from the butcher tomorrow with a decent amount of fat (don't know how many pounds yet). What are the best and/or most economical uses of pig fat or lard? I'm not ...
7
votes
1answer
133 views

What's the largest polyculture farm out there?

I'm curious if anyone has an information about the largest polyculture farms that have been able to be successful. Are planning and harvesting techniques good enough to make polyculture economically ...
5
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2answers
269 views

How can people afford to be self-sufficient and sustainable?

This is my first post so hello to everyone on here! One thing I constantly battle with is money and affording to be more self-sufficient. Don't get me wrong – I earn good money, I have managed ...
7
votes
1answer
594 views

How environmentally friendly is the production process of vitamin B12 supplements?

A vegan diet recommends the use of fortified foods and supplements (Wikipedia). How environmentally friendly is the production process of these vitamin B12 pills? Might it maybe even be better for ...
5
votes
3answers
521 views

Best way to store vegetables in the fridge

What is the best way to store fruits and vegetables in the fridge? I currently use plastic food containers like those in this picture, of different sizes. 1) Is it better in terms of energy ...
12
votes
3answers
3k views

How food producers calculate “best before” date?

How food producers calculate "best before" date? Why I'm asking on SL? Because I'd rather not waste food to be sustainable. And many times I'm advised (by "best before" date put on food package) to ...
5
votes
2answers
3k views

What depth of soil is required for a roof top garden?

What depth of soil is required for a roof top garden? In particular I am looking to grow plants that will produce food without requiring re-planting yearly (like strawberries and chives). However I ...
5
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2answers
171 views

Aquaculture from nothing

I'm in the process of setting up an aquaponics (recirculating aquaculture) system. The main fish being raised are Channel Catfish, and in a separate tank I am also attempting to raise Guppies as a ...
4
votes
1answer
106 views

How many people depend on food banks worldwide?

A large amount of edible food is wasted by households (corresponding to unsustainable behaviours) that could potentially be diverted to food banks. I am interested in the potential of people who could ...
8
votes
3answers
15k views

How can we detect if a water melon contains artificial colouring?

Recently I heard at the market that water melons are injected with artificial colouring to make them look fresh and attractive, even though it is very harmful for anyone who consumes them. Is there a ...
7
votes
3answers
488 views

When buying beer is refilling growlers better than recycling bottles and cans?

I'm trying to decide if it's worth buying all my beer in reusable growlers (32-64 oz. / 0.9-1.9 liter reusable glass containers). I live in New York, so doing so requires me to go out of my way but is ...
8
votes
3answers
302 views

Optimising crop yields without using fossil-fuel-manufactured fertiliser

The green revolution produced a step change in crop yields. Although nitrogen-based fertilisers have been produced without fossil fuels, a very large proportion of global fertiliser production depends ...
5
votes
2answers
108 views

When transporting high-end food stuff from Chita to Moscow, which method is more fuel efficient, by rail or by air?

Chita is a Russian city nestled between Mongolia and Manchuria. Although Chita is located on the trans-siberian railway, I wonder if it is more energy efficient to ship 100 tons of cut beef every day ...
5
votes
3answers
279 views

Why were meat, shrimps, vegetable, fruit in the past more delicious than they are now?

I traveled to many countries in the world and I found that generally meat, shrimps, vegetable, fruit in the past (like 30 years ago) were more delicious than they are now. Is that because people try ...
6
votes
5answers
1k views

Can real straw be used as a natural drinking straw?

I'm wondering if grass (or something else) straw was ever used for making drinking straws before plastic ones were made. My daughter loves having a straw in her drink but it irks me to have to throw ...
13
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3answers
200 views

Is eating beef unsustainable?

I recently saw a poster somewhere saying that some type of emission or byproduct that comes out of cattle production is extremely wasteful and harmful to the environment. What exactly is this ...
9
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1answer
116 views

Does vegetarianism help in protecting nature?

Recently I saw a documentary in youtube 'Home'. It points out that in America, for feeding cattle, a lot of wheat and other food products are used and these animals are then killed for food. What are ...
7
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1answer
199 views

How can I clean old cooking oil for use in candles?

I have a tupperware of old cooking oil in the fridge that I've been debating throwing away - but I would rather re-use it than just toss it. Can I render it and make it into jar candles? It's ...