A glass container comprising as container parts i) a glass tube with a first end, a further end, an outer diameter d1, an inner diameter d2 and a glass thickness s1, the glass tube being characterized by a longitudinal axis L tube that passes through the centre of the first and the further end (102,103); ii) a circular glass bottom, wherein the circular glass bottom closes the glass tube at the first end, wherein the circular glass bottom comprises an inner surface directed to the inside of the glass container, an outer surface directed to the outside of the glass container and a centre; iii) a curved glass heel extending from an outer end of the circular glass bottom to the first end of the glass tube; - wherein h(x,y) is the two-dimensional distance between a) a contact plane representing the ground on which the glass container rests with the circular glass bottom being at least partially in contact with the ground, and b) the outer surface of the circular glass bottom at a given position x,y, with x = 0 and y = 0 in the centre of the circular glass bottom, the two-dimensional distance being measured in a direction that is parallel to the longitudinal axis L tube, - wherein dh / dx 2 + dh / dy 2 is the slope magnitude of the outer surface of the circular glass bottom at the given position x,y, - wherein the 75 % quantile of the values that have been determined for the term dh / dx 2 + dh / dy 2 × d 1 / h x y delta - for all given positions x,y within a circular area having a radius of 0.4 × d2/ 2 and a centre that corresponds to the centre of the glass bottom is less than 4100 μm/mm, wherein adjacent positions x,y increase stepwise by 200 μm and wherein h(x,y) delta = h(x,y) max - h(x,y) min, h(x,y) max being the maximum value for h(x,y) and h(x,y) min being the minimum value for h(x,y) being determined in that circular area. i) a glass tube with a first end, a further end, an outer diameter d1, an inner diameter d2 and a glass thickness s1, the glass tube being characterized by a longitudinal axis L tube that passes through the centre of the first and the further end (102,103); ii) a circular glass bottom, wherein the circular glass bottom closes the glass tube at the first end, wherein the circular glass bottom comprises an inner surface directed to the inside of the glass container, an outer surface directed to the outside of the glass container and a centre; iii) a curved glass heel extending from an outer end of the circular glass bottom to the first end of the glass tube; - wherein h(x,y) is the two-dimensional distance between a) a contact plane representing the ground on which the glass container rests with the circular glass bottom being at least partially in contact with the ground, and b) the outer surface of the circular glass bottom at a given position x,y, with x = 0 and y = 0 in the centre of the circular glass bottom, the two-dimensional distance being measured in a direction that is parallel to the longitudinal axis L tube, - wherein dh / dx 2 + dh / dy 2 is the slope magnitude of the outer surface of the circular glass bottom at the given position x,y, - wherein the 75 % quantile of the values that have been determined for the term dh / dx 2 + dh / dy 2 × d 1 / h x y delta - for all given positions x,y within a circular area having a radius of 0.4 × d2/ 2 and a centre that corresponds to the centre of the glass bottom is less than 4100 μm/mm, wherein adjacent positions x,y increase stepwise by 200 μm and wherein h(x,y) delta = h(x,y) max - h(x,y) min, h(x,y) max being the maximum value for h(x,y) and h(x,y) min being the minimum value for h(x,y) being determined in that circular area. - wherein h(x,y) is the two-dimensional distance between a) a contact plane representing the ground on which the glass container rests with the circular glass bottom being at least partially in contact with the ground, and b) the outer surface of the circular glass bottom at a given position x,y, with x = 0 and y = 0 in the centre of the circular glass bottom, the two-dimensional distance being measured in a direction that is parallel to the longitudinal axis L tube, a) a contact plane representing the ground on which the glass container rests with the circular glass bottom being at least partially in contact with the ground, and b) the outer surface of the circular glass bottom at a given position x,y, with x = 0 and y = 0 in the centre of the circular glass bottom, - wherein dh / dx 2 + dh / dy 2 is the slope magnitude of the outer surface of the circular glass bottom at the given position x,y, - wherein the 75 % quantile of the values that have been determined for the term dh / dx 2 + dh / dy 2 × d 1 / h x y delta - for all given positions x,y within a circular area having a radius of 0.4 × d2/ 2 and a centre that corresponds to the centre of the glass bottom is less than 4100 μm/mm, wherein adjacent positions x,y increase stepwise by 200 μm and wherein h(x,y) delta = h(x,y) max - h(x,y) min, h(x,y) max being the maximum value for h(x,y) and h(x,y) min being the minimum value for h(x,y) being determined in that circular area.