Most platforms require 0.01 LTC to withdraw. With free mining, this could take 30–90 days. If the site offers "instant withdrawal" with no minimum, be suspicious.
: Any site promising high, guaranteed daily returns for "free" is likely a Ponzi scheme. ltc mining cloud free
The threshold to withdraw your earnings is set intentionally high. At the free mining speed, it might take you two to three years of continuous mining to reach the withdrawal limit. Most platforms require 0