Solid food and solid milk

Abstract

A solid food has a solid form obtained by compression molding a powder. Where a dissolution process from the solid food starting to dissolve until completely dissolving is measured over time on the basis of electric conductivity, times at which a dissolution ratio where electric conductivity at the time of finish of dissolution is 100%, reaches 20%, 63%, and 95% are t20, t63, and t95, and times (sec) at which the dissolution ratio of a reference solid food, formed under conditions in which a difference in weight with the solid food is within ±0.3%, a difference in surface area is within ±2%, a difference in hardness is within ±4%, and a humidification treatment temperature is 100° C. or lower, reaches 20%, 63%, and 95% are t20ref, t63ref, and t95ref, a solubility index (Id) represented by the following Formula (1) is less than 1.Id=(t20/t20ref+t63/t63ref+t95/t95ref)/3  (1)

1 . A solid food having a solid form obtained by compression molding a food powder,
 wherein the solid food is obtained by subjecting the solid form obtained by compression molding the food powder to a humidification treatment at a temperature higher than 100° C.,   wherein in a case where the solid food is submerged in 200 ml of warm water at 50±1° C. with respect to one solid food and stirred at a rotation speed of 0.5 m/s (peripheral speed), a dissolution process from the solid food starting to dissolve until the solid food completely dissolving is measured over time on the basis of electric conductivity,   times (sec) at which a dissolution ratio, which is a ratio of electric conductivity when electric conductivity at the time of finish of dissolution is regarded as 100%, reaches 20%, 63%, and 95% are respectively designated as t 20 , t 63 , and t 95 , and   times (sec) at which the dissolution ratio of a reference solid food, which is formed under conditions in which a difference in weight with the solid food is within ±0.3%, a difference in surface area with the solid food is within ±2%, a difference in hardness with the solid food is within ±4%, and a humidification treatment temperature is 100° C. or lower, reaches 20%, 63%, and 95% are respectively designated as t 20ref , t 63ref , and t 95ref ,   a solubility index (I d ) represented by the following Formula (1) is less than 1,
     I   d =( t   20   /t   20ref   +t   63   /t   63ref   +t   95   /t   95ref )/3  (1).
 
   
     
     
         2 . A solid milk having a solid form obtained by compression molding a powdered milk,
 wherein the solid food is obtained by subjecting the solid form obtained by compression molding the food powder to a humidification treatment at a temperature higher than 100° C.,   wherein in a case where the solid milk is submerged in 200 ml of warm water at 50±1° C. with respect to one solid milk and stirred at a rotation speed of 0.5 m/s (peripheral speed), a dissolution process from the solid milk starting to dissolve until the solid milk completely dissolving is measured over time on the basis of electric conductivity, times (sec) at which a dissolution ratio, which is a ratio of electric conductivity when electric conductivity at the time of finish of dissolution is regarded as 100%, reaches 20%, 63%, and 95% are respectively designated as t 20 , t 63 , and t 95 , and   times (sec) at which the dissolution ratio of a reference solid milk, which is formed under conditions in which a difference in weight with the solid milk is within ±0.3%, a difference in surface area with the solid milk is within ±2%, a difference in hardness with the solid milk is within ±4%, and a humidification treatment temperature is 100° C. or lower, reaches 20%, 63%, and 95% are respectively designated as t 20ref , t 63ref , and t 95ref ,   a solubility index (I d ) represented by the following Formula (2) is less than 1,
     I   d =( t   20   /t   20ref   +t   63   /t   63ref   +t   95   /t   95ref )/3  (2).
 
   
     
     
         3 . The solid milk according to  claim 2 , wherein a content ratio of free fat is 0.5% by weight or more and 4% by weight or less. 
     
     
         4 . The solid milk according to  claim 1 , wherein the solid food is obtained by subjecting the solid form obtained by compression molding the food powder to a humidification treatment at a temperature of 110° C. or higher and 330° C. or lower. 
     
     
         5 . The solid milk according to  claim 2 , wherein the solid food is obtained by subjecting the solid form obtained by compression molding the food powder to a humidification treatment at a temperature of 110° C. or higher and 330° C. or lower.