Freeze Dried veggies rehydrate very quickly. However, if you are saving money and dehydrating yourself, what you can do, is a couple hours before you stop hiking to make your meal, presoak your dehydrated veggies with cold water in a spare water bottle or sealable container. After a couple of hours of hiking, the toughest dehydrated veggies will be rehydrated, then just add to what ever meal you are making. This trick works for any meal and is why (If I am using dehydrated ingredients), I always keep my dehydrated veggies separate from everything else (when vacuum sealing up my meals).

We’ve found that the Just Veggies brand rehydrates pretty quickly, so we didn’t have any issues with the noodles overcooking. However, I know that different brands of dehydrated vegetables have varying cook times, so to be safe you could separate the noodles from the vegetables, and once the veggies seem pretty tender, add the noodles to the pot and cook from there.

Haven’t tried a quick boil and long soak with buckwheat noodles before. We should give it a try. It might affect how the starch breaks down but will vary depending on the brand of noodle. We’ve had some noodles turn to mush and some stay hold firm. Definitely try it first at home before taking it out into the backcountry.