A method for producing silicone hydrogel contact lenses, comprising the steps of: obtaining a polymerizable composition which is clear at room temperature, wherein the polymerizable composition comprises (a) at least one siloxane-containing vinylic monomer, (b) at least one polysiloxane vinylic crosslinker, (c) from 15% to 55% by weight of at least one hydrophilic (meth)acrylamido monomer having 3 to 8 carbon atoms, (d) from 0 to 25% by weight of an organic solvent, relative to the total weight of the polymerizable composition, wherein the organic solvent has 2 to 8 carbon atoms, (e) at least one thermal free radical initiator, and (f) at least one radical scavenger present in an amount for providing the polymerizable composition with a bi-phase curing profile determined by using thermal DSC to polymerization kinetics of the polymerizable composition at a curing temperature of from 45°C to 100°C as function of time; introducing the polymerizable composition into a lens mold, wherein the lens mold comprises a male mold half having a first molding surface and a female mold half having a second molding surface, wherein the male and female mold halves are configured to receive each other such that a mold cavity is formed between the first and second molding surfaces when the mold is closed; curing thermally the polymerizable composition in the lens mold in an oven at the curing temperature for at least 30 minutes to form an unprocessed silicone hydrogel lens contact lens; separating the lens mold into the male and female mold halves (2,1), with the unprocessed silicone hydrogel contact lens being adhered on a lens-adhered mold half which is one of the male and female mold halves (2,1); and removing the unprocessed silicone hydrogel contact lens from the lens-adhered mold half. obtaining a polymerizable composition which is clear at room temperature, wherein the polymerizable composition comprises (a) at least one siloxane-containing vinylic monomer, (b) at least one polysiloxane vinylic crosslinker, (c) from 15% to 55% by weight of at least one hydrophilic (meth)acrylamido monomer having 3 to 8 carbon atoms, (d) from 0 to 25% by weight of an organic solvent, relative to the total weight of the polymerizable composition, wherein the organic solvent has 2 to 8 carbon atoms, (e) at least one thermal free radical initiator, and (f) at least one radical scavenger present in an amount for providing the polymerizable composition with a bi-phase curing profile determined by using thermal DSC to polymerization kinetics of the polymerizable composition at a curing temperature of from 45°C to 100°C as function of time; (a) at least one siloxane-containing vinylic monomer, (b) at least one polysiloxane vinylic crosslinker, (c) from 15% to 55% by weight of at least one hydrophilic (meth)acrylamido monomer having 3 to 8 carbon atoms, (d) from 0 to 25% by weight of an organic solvent, relative to the total weight of the polymerizable composition, wherein the organic solvent has 2 to 8 carbon atoms, (e) at least one thermal free radical initiator, and (f) at least one radical scavenger present in an amount for providing the polymerizable composition with a bi-phase curing profile determined by using thermal DSC to polymerization kinetics of the polymerizable composition at a curing temperature of from 45°C to 100°C as function of time; introducing the polymerizable composition into a lens mold, wherein the lens mold comprises a male mold half having a first molding surface and a female mold half having a second molding surface, wherein the male and female mold halves are configured to receive each other such that a mold cavity is formed between the first and second molding surfaces when the mold is closed; curing thermally the polymerizable composition in the lens mold in an oven at the curing temperature for at least 30 minutes to form an unprocessed silicone hydrogel lens contact lens; separating the lens mold into the male and female mold halves (2,1), with the unprocessed silicone hydrogel contact lens being adhered on a lens-adhered mold half which is one of the male and female mold halves (2,1); and removing the unprocessed silicone hydrogel contact lens from the lens-adhered mold half.