May I I ask what you are taking out of a pre-ready to cook meal? Is it something you have trouble digesting ?  I've often thought of doing the same by ordering 2 or 3 meals to see what they are like.  They do have good deals from what I've read . 

**If they added vitamins, they would have to place it on your nutrition sheet if its included.  

Red sauces give me heart burn too,  but I beat it into submission by drinking milk with a red sauced meal  & then eating yogurt afterwards & tummy swishing to mix it up! Lol, sounds rediculous but it does help. 

But everything you've been describing, including the "foamy output", is something I've experienced at one point or another (certain foods can produce this on-demand, if I wanted 🤣 ).

Yes I've gotten the foam too. It looks like suds.

You got me thinking now...I'm wondering if they put vitamins in these pre made meals? 

Maybe this would be a good place to talk about foods & Blockages. If you're up to it, put what foods you like to eat here & I'll do my best to give you ideas on how to cook or prep them differently so you can still enjoy eating the way you prefer while avoiding nasty Blockages. 

I've had a few nasty days & was still checking in here to read. But as things get more under control I'll be here to try & help. 

Linda

Which appliance are you using? If hollister, they did change the plastic not long ago, which could stain more easily.

Do you notice any change to the colour of your output? Bile tends to be greenish and could stain for sure.

Any other changes to diet that might attribute to this? Namely, any new spices, tomatoes, carrots, etc.?