PuffM4gicDr4gon said:

It's E211 and E202. I had to dig deep into my DMs to find it.

Both can be present in any color. It's brand specific AFAIK

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raccoon_cat said:

I think it’s the red dye that has anti fungal properties.

I used blue food coloring in my first few batches of agar, but it turns out mycelium eats the blue stuff eventually anyway so I stopped. I use molasses as my sugar source which lends a nice caramel color to the finished plates.

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fontinalis666 said:

raccoon_cat said:

I think it’s the red dye that has anti fungal properties.

I used blue food coloring in my first few batches of agar, but it turns out mycelium eats the blue stuff eventually anyway so I stopped. I use molasses as my sugar source which lends a nice caramel color to the finished plates.

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Mushroom myc digesting the color is actually kind of a good thing imo, if you have a fully colonized plate and there's spots of color still it's probably areas of mold, or on a streak plate thats grown out a bit you can tell what's good vs bad myc by the color of the agar underneath

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Huskies said:

fontinalis666 said:

raccoon_cat said:

I think it’s the red dye that has anti fungal properties.

I used blue food coloring in my first few batches of agar, but it turns out mycelium eats the blue stuff eventually anyway so I stopped. I use molasses as my sugar source which lends a nice caramel color to the finished plates.

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Mushroom myc digesting the color is actually kind of a good thing imo, if you have a fully colonized plate and there's spots of color still it's probably areas of mold, or on a streak plate thats grown out a bit you can tell what's good vs bad myc by the color of the agar underneath

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No common molds or bacterias actually consume the food coloring or absorb the water?

My blue plates have gone beige with myc. Like you said, its reassuring.

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