This post is to collect tags which are controversial. Please comment, or start an answer for specific entries.
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for physics, biology, or chemistry of food
for posts looking for easier ways to do things
for cooking/serving ideas and suggestions, pairings
for questions about the difference between two ingredients, techniques, etc.
note: if you prefer this tag in a specific formulation (i.e. comparison-technique, food-comparison, cuisine-comparison), leave a comment or add it as a new answer.
for clarification of terms or ingredients
note: [comparisons] is also commonly used but may not be an exact duplicate, since it could involve comparisons of technique or something else. That might support using the broader [comparisons] and ditching [food-differences], instead of having both.
for posts about solving a specific or persistent problem
for products typically purchased at a store, but instead made from scratch, DIY style.