Question
I stopped by a farm stand last weekend, and found the strawberries were rather pale looking. I commented on this, and the farmer assured me that this was no worry, and that furthermore I should be wary of bright red strawberries. His claim was that bright red strawberries at the supermarket are in fact dyed that color.
Is it common practice to dye berries? Is it even legal? Is this something one would normally expect to find at a grocery store, or is a technique used elsewhere (say, commercially, or in restaurants?) Or is this guy just trying to convince me to buy his product?
Answer
Strawberries turn a natural red color in their ripening process. This is usually a very strong, ruby-red color. Rest assured, strawberries in the US are not dyed. FDA clearly lists all adulteration done to fruits (oranges can be dyed), but strawberries only has a regulation of when the product is considered moldy, etc. Note that even though dyed strawberries may not be sold in US, they may be exported in countries that permit it ( fruit intended for export is exempt).
Rest of the world is a different story. It wouldn't be uncommon for you to find strawberries that are picked too early in the process, or are just grown in poor conditions that are dyed red to give it the luscious red appearance. There have been anecdotal reports of this in China - this color comes right off when washed, showing a white strawberry. Strawberries do leech a red fluid when washed, but that shouldn't result in a white strawberry.
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