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 the topography of the outer surface of the circular glass bottom is defined by a function ĥ(x), - wherein ĥ(x) is the azimuthal average of the distance between a) a contact plane representing the ground on which the glass container rests with at least a part of the circular glass bottom being in contact with the ground, and b) the outer surface of the circular glass bottom at any given position that is located on a circle having a centre that corresponds to the centre of the circular glass bottom and the radius | x |, - wherein individual values ĥ for ĥ(x) are determined for a plurality of circles the radius of which increases stepwise by 500 μm, starting with a circle around the centre of the circular glass bottom having a radius of 500 μm, and wherein the individual values ĥ are determined in the range from x = - 0.4 × d2 /2 to x = + 0.4 × d2 /2, d2 having a size such that at least 4 values ĥ are determined, - wherein the thus obtained individual values ĥ can be fitted in a least square fit with a curvature function h ^ x = − c × x 2 1 + 1 − c 2 × x 2 + h 0 c and h 0 being free fitting parameters, and - wherein Δc is the standard deviation error for constant c when fitting the individual values ĥ(x) with curvature function and wherein the relative standard deviation error Δc/c is less than 0.1. 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 the topography of the outer surface of the circular glass bottom is defined by a function ĥ(x), - wherein ĥ(x) is the azimuthal average of the distance between a) a contact plane representing the ground on which the glass container rests with at least a part of the circular glass bottom being in contact with the ground, and b) the outer surface of the circular glass bottom at any given position that is located on a circle having a centre that corresponds to the centre of the circular glass bottom and the radius | x |, a) a contact plane representing the ground on which the glass container rests with at least a part of the circular glass bottom being in contact with the ground, and b) the outer surface of the circular glass bottom - wherein individual values ĥ for ĥ(x) are determined for a plurality of circles the radius of which increases stepwise by 500 μm, starting with a circle around the centre of the circular glass bottom having a radius of 500 μm, and wherein the individual values ĥ are determined in the range from x = - 0.4 × d2 /2 to x = + 0.4 × d2 /2, d2 having a size such that at least 4 values ĥ are determined, - wherein the thus obtained individual values ĥ can be fitted in a least square fit with a curvature function h ^ x = − c × x 2 1 + 1 − c 2 × x 2 + h 0 c and h 0 being free fitting parameters, and - wherein Δc is the standard deviation error for constant c when fitting the individual values ĥ(x) with curvature function and wherein the relative standard deviation error Δc/c is less than 0.1.