NOVELTY - A solar water pasteurizer (100) comprises flexible water-tight resealable container (109) comprising top and bottom in which bottom comprises resealable opening (111), resealable opening comprises water-tight spout with mating resealable cap (113), reusable temperature indicators (119) used for indicating temperature history of water contained in container are positioned in resealable cap, temperature indicator is glass tube containing wax which melts at pasteurization temperatures, and container further comprises energy converting structures.    USE - Solar water pasteurizer for production of potable water (claimed).    ADVANTAGE - Solar water pasteurizer is simple, trouble-free, inexpensive, and portable.    DETAILED DESCRIPTION - A solar water pasteurizer (100) comprises flexible water-tight resealable container (109) comprising top and bottom in which bottom comprises resealable opening (111), resealable opening comprises water-tight spout with mating resealable cap (113), reusable temperature indicators (119) used for indicating temperature history of water contained in container are positioned in resealable cap, temperature indicator is glass tube containing wax which melts at pasteurization temperatures, container further comprises energy converting structures, 1st insulation structure (115) is located on top of container, 1st insulation structure comprises matrix containing substantially air-tight structures having contained gas, 1st insulation structure has vents in matrix into substantially air-tight structures used for releasing moisture collected on underside of 1st insulation structure, 2nd insulation structure (117) is located on bottom of container, 2nd insulation structure is matrix containing substantially air-tight structures having contained gas, closed cell foam, or open cell foam, and insulation structures are collectively sufficient to enable pasteurizer for achieving water temperatures at 60 degrees C. INDEPENDENT CLAIMS are included for:    (1) production of potable water which involves exposing water contained in solar water pasteurizer into energy source to pasteurize; and    (2) assembly of solar water pasteurizer which involves stacking 1st and 2nd sheets of flexible polymeric material in insulation structure, bonding sheets with water-tight spout to create three-ply structure bonded to water-tight spout in which 1st sheet has energy reflective layer and 2nd sheet is energy converting structure, and stacking and bonding 3rd and 4th sheets of flexible polymeric material to 1st and 2nd sheets of material in which 3rd sheet is transparent and 4th sheet provides transparent insulating airspace (103).    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional elevation view of an solar water pasteurizer.    Solar water pasteurizer (100)    Transparent insulating airspace (103)    Flexible water-tight resealable container (109)    Resealable opening (111)    Resealable cap (113)    1st insulation structure (115)    2nd insulation structure (117)    Reusable temperature indicators (119)