What the appcache includes?it's so large of my app

i wonder what the appcache include, i have install appcache package,but it says my app’s cache is up to 10MB ,i wonder why it is so large? my client and lib folder are just 40kb

Other files could be from your packages.

There has been some discussion around this one already. Have a read here: What's wrong appcache and meteor in general?