Despite of its useless reputation Fireweed is very useful plant. Old times it was believed to make the cows to milk better. According to modern medical investigations it is diuretic antioxidant which also eases the pain. It is calming, cooling and drying. It makes good to your blood pressure, cholesterol and blood sugar levels. It also prevents prostate troubles. Fireweed tea which is made of young leaves is used also to prevent, ease or heal head ache, asthma, cough, diarrhea and other problems in your digestive system. This tea also relaxes and eases insomnia.
I collect Fireweed from MyGarden and make bunch of 10 stems. If the weather is good I let them dry outside at first. Then I move them indoors to continue drying in MySauna.
I don't have a lot of Tupperware but I do have Chop 'N' Prep Chef and Power Chef System I use here. They ease MyLife a lot because I cook so much at home. In MyWorld there is no other cheaper similar kitchenware available. Despite Tupperware is not MyHobby and I try to avoid its materialistic world quite much I must confess they have few practical and useful things for sale. Unfortunately Tupperware is quite expensive trademark and I am sure in the BigWorld you can find similar equipment much cheaper at supermarkets' kitchen department. You just need something with blade to shred it all to small pieces.
Alternative option is something to press it all against something. When the leaves are dry enough also that makes them to be shred. It becomes dust-like so be careful not to make it all to spread around like a blow of a dust and get lost. You need a bowl or something to keep it all safe in.