I have a two month supply of soylent 1.5 that I let run and expired on 03/17. We’re now in 2019 now, is it still safe to use?
Should be. I’ve had years old pouches before. I believe the only ‘issue’ is vitamin degradation and I don’t even think 2 years is long enough for that.
So long as the packaging is unopened, the powder inside doesn’t have an off color, smell, or taste then the only prob would be that the nutrients haved decayed, meaning it will be less nutritious than a fresh bag.
FWIW I just had some expired 1.8 yesterday and it was perfectly fine, so I’d totally consume that 1.5 too!